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Calculations involving masses

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This unit covers writing chemical formulae, balancing equations, and using the conservation of mass. It includes calculating moles, empirical formulae, relative formula masses, and theoretical yields. Emphasis is on stoichiometry, concentration, gas volumes, and using standard form.

Prior knowledge requirements

  • Ardaydu waa inay yaqaanaan aasaaska maadada.
  • Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 5 / 8

Calculations involving masses

This unit covers writing chemical formulae, balancing equations, and using the conservation of mass. It includes calculating moles, empirical formulae, relative formula masses, and theoretical yields. Emphasis is on stoichiometry, concentration, gas volumes, and using standard form.

30 lessons
  1. Empirical formula calculations: using moles
  2. Empirical formula calculations
  3. Conservation of mass
  4. The mole
  5. Determining an equation experimentally: magnesium oxide (RAM 1 d.p.)
  6. Uncertainties in measurements: chemistry
  7. Balancing equations
  8. Mass in a chemical reaction: using moles (RAM 1 d.p.)
  9. Mass in a chemical reaction: using moles
  10. Mass in a chemical reaction
  11. Three types of chemical reaction
  12. Limiting reactants
  13. The mole (RAM 1 d.p.)
  14. Mass in a chemical reaction (RAM 1 d.p.)
  15. Converting between mass and volume using moles
  16. Deducing an empirical formula experimentally
  17. Moles and masses
  18. Representations of a mole (RAM 1 d.p.)
  19. Representations of a mole
  20. Gas volumes (RAM 1 d.p.)
  21. Determining an equation experimentally: sodium hydrogencarbonate (RAM 1 d.p.)
  22. Moles and masses (RAM 1 d.p.)
  23. Gas volumes
  24. Converting between mass and volume using moles (RAM 1 d.p.)
  25. Limiting reactants (RAM 1 d.p.)
  26. Deducing an empirical formula experimentally: using moles
  27. Determining an equation experimentally: sodium hydrogencarbonate
  28. Determining an equation from given values
  29. Determining an equation from given values (RAM 1 d.p.)
  30. Determining an equation experimentally: magnesium oxide